Instruments

Instruments is a core knowledge area on the General Aeronautical Knowledge FAA written exam. This hub collects our 1 in-depth, ACS-aligned instruments articles — each written in plain English and grounded in the official FAA handbooks. Work through them below, then drill the topic with practice questions.

The Pitot-Static System

The pitot-static system supplies ram and static air pressure to the airspeed indicator, altimeter, and vertical speed indicator. Blockages produce characteristic, predictable instrument errors.

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Articles are original summaries grounded in the public-domain FAA handbooks and cite their source. ACS-aligned study aids — not a substitute for the official handbooks or regulations.